113 lines
3.3 KiB
C++
113 lines
3.3 KiB
C++
/*
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* Copyright (C) 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <cstdio>
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#include <memory>
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#include <string>
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#include <vector>
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#include "android-base/logging.h"
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#include "android-base/stringprintf.h"
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#include "jni.h"
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#include "jvmti.h"
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#include "scoped_local_ref.h"
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#include "scoped_utf_chars.h"
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// Test infrastructure
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#include "jni_helper.h"
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#include "jvmti_helper.h"
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#include "test_env.h"
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#include "ti_macros.h"
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namespace art {
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namespace Test1957ErrorExt {
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using GetLastError = jvmtiError(*)(jvmtiEnv* env, char** msg);
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using ClearLastError = jvmtiError(*)(jvmtiEnv* env);
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template <typename T>
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static void Dealloc(T* t) {
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jvmti_env->Deallocate(reinterpret_cast<unsigned char*>(t));
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}
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template <typename T, typename ...Rest>
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static void Dealloc(T* t, Rest... rs) {
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Dealloc(t);
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Dealloc(rs...);
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}
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static void DeallocParams(jvmtiParamInfo* params, jint n_params) {
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for (jint i = 0; i < n_params; i++) {
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Dealloc(params[i].name);
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}
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}
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static jvmtiExtensionFunction FindExtensionMethod(JNIEnv* env, const std::string& name) {
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jint n_ext;
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jvmtiExtensionFunctionInfo* infos;
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if (JvmtiErrorToException(env, jvmti_env, jvmti_env->GetExtensionFunctions(&n_ext, &infos))) {
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return nullptr;
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}
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jvmtiExtensionFunction res = nullptr;
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for (jint i = 0; i < n_ext; i++) {
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jvmtiExtensionFunctionInfo* cur_info = &infos[i];
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if (strcmp(name.c_str(), cur_info->id) == 0) {
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res = cur_info->func;
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}
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// Cleanup the cur_info
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DeallocParams(cur_info->params, cur_info->param_count);
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Dealloc(cur_info->id, cur_info->short_description, cur_info->params, cur_info->errors);
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}
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// Cleanup the array.
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Dealloc(infos);
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if (res == nullptr) {
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ScopedLocalRef<jclass> rt_exception(env, env->FindClass("java/lang/RuntimeException"));
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env->ThrowNew(rt_exception.get(), (name + " extensions not found").c_str());
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return nullptr;
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}
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return res;
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}
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extern "C" JNIEXPORT
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jstring JNICALL Java_art_Test1957_getLastError(JNIEnv* env, jclass klass ATTRIBUTE_UNUSED) {
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GetLastError get_last_error = reinterpret_cast<GetLastError>(
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FindExtensionMethod(env, "com.android.art.misc.get_last_error_message"));
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if (get_last_error == nullptr) {
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return nullptr;
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}
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char* msg;
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if (JvmtiErrorToException(env, jvmti_env, get_last_error(jvmti_env, &msg))) {
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return nullptr;
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}
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return env->NewStringUTF(msg);
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}
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extern "C" JNIEXPORT
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void JNICALL Java_art_Test1957_clearLastError(JNIEnv* env, jclass klass ATTRIBUTE_UNUSED) {
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ClearLastError clear_last_error = reinterpret_cast<ClearLastError>(
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FindExtensionMethod(env, "com.android.art.misc.clear_last_error_message"));
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if (clear_last_error == nullptr) {
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return;
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}
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JvmtiErrorToException(env, jvmti_env, clear_last_error(jvmti_env));
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}
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} // namespace Test1957ErrorExt
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} // namespace art
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